Updated google tracking.
Added link tracking.
fix: changed iri to current standard
Merge pull request #715 from satra/fix/iri

fix: changed iri to current standard
fix: cleaned prov
Merge pull request #716 from satra/cleanup/prov

fix: cleaned prov
fix: allow 4 parameters for antsRegistration transform
doc: added reference to BSplineSyn
Merge pull request #717 from satra/fix/antsbspline

Fix/antsbspline
fix refit
Merge pull request #718 from chrisfilo/fix/refit

fix refit
fixed outputs assignment
Merge pull request #720 from chrisfilo/fix/refit

fixed outputs assignment
not sure it fixes the bug, only happens when trimming
Merge branch 'master' into enh/dcmstack

* master:
  fixed outputs assignment
  fix refit
  doc: added reference to BSplineSyn
  fix: allow 4 parameters for antsRegistration transform
  fix: cleaned prov
  fix: changed iri to current standard
  Added link tracking.
  Updated google tracking.